For product service life in differentials, consult your owner's
manual or the Original Equipment Manufacturer (OEM) to establish
the application, NORMAL or SEVERE.

.

Normal Service

Severe Service

Cars, SUVs, Light Trucks

Drain at 100,000 miles
of service or according to the owner's
manual, whichever is longer

Drain at 50,000 miles of
service or according to the owner's
manual, whichever is longer

Heavy Duty Class 8 Line
Haul

Follow the
OEM drain interval (miles or hours) for
synthetic oil up to 250,000 miles or three years,
whichever comes first.

Vocational/Delivery

Follow the
OEM drain interval (miles or hours) for
synthetic oil up to 120,000 miles or three years,
whichever comes first.

Heavy Duty Off-Road

Follow the
OEM drain interval (miles or hours) for
synthetic oil up to 100,000 miles or two years,
whichever comes first.

For product service life in non-differential applications, consult
owner's manual or the OEM for either normal or severe synthetic
oil service intervals. Where service intervals are unavailable, drain
at twice the interval for conventional oil.

Gear oils should be changed more frequently when operating vehicles
or equipment in dusty or dirty conditions, unless the gear system
is properly sealed and equipped with membrane-type breathers.

Note: AMSOIL does not support extended drain intervals where
water contamination occurs. Check and service the gear oil frequently
when water contamination is possible.

Recommended for use in differentials, manual transmissions and
other gear applications requiring any of the following specifications:
API GL-5, MT-1, MIL-PRF-2105E, Dana SHAES 234 (Formerly Eaton
PS-037), Mack GO-J, or the differential (hypoid) gear oil specifications
from all domestic and foreign manufacturers such as GM, Ford and Daimler Chrysler. Can also be used in axles where
an API GL-4 lubricant is recommended.

AMSOIL Severe Gear is compatible with conventional and
synthetic gear oils. Mixing AMSOIL gear oil with other oils,
however, will shorten the oil life expectancy and reduce the
performance benefits. AMSOIL does not support extended
drain intervals where oils have been mixed.

Aftermarket oil additives, other than those specified by
AMSOIL, are not recommended for use with AMSOIL gear oil.

HEALTH & SAFETY
This product is not expected to cause health concerns when used for the intended
application and according to the recommendations in the Material
Safety Data Sheet (MSDS). An MSDS is available via the Internet at www.amsoil.com
or upon request at (715) 392-7101. Keep Out of Reach of Children. Don’t pollute.

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